Lü

Lü Attractor — Discovered by Jinhu Lü and Guanrong Chen (2002), the third member of the Lorenz–Chen–Lü family; it forms a bridge between the Lorenz and Chen systems and produces a two-scroll butterfly.

dx/dt = a(y − x)
dy/dt = cy − xz
dz/dt = xy − bz

Open Lü in chaosrack →

It opens running, on the model selector, with its own knobs. Rotate it by dragging, zoom with the wheel, and turn the parameters to see what the figure does when the system changes.